Sky Harbor Airport Terminal 2
We had a direct flight from Denver to Phoenix. Both airports are nice, and the Skytrain in Phoenix comes in very handy.
At the time, the train to the airport was not completed, so we took a shuttle bus from Union Station. The driver forgot to close the luggage door, so everyone almost lost their luggage...
We had to drive back down to Denver to catch our flight that evening. There is now a train that connects the city to the airport.